Yakima SkyBox 21 Rooftop Cargo Box Rooftop cargo box with 21 cubic feet of total storage space Quick-installation hardware fits round, square, and most factory crossbars Aerodynamic shape minimizes drag; extra-stiff lid is easy to open Improved security latch protects your gear; matte anti-scratch finish Equipped with SKS locks; measures 92 x 18 x 36 inches (W x H x D)